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Show I-,,, BETTER j ROADS ft,, Pranks of Temperature Puin Expensive Roads .Tm-I I' ro.si unci Merry Sunshine lire wrliildlnu the brows of highway engineers en-gineers mniI eontrnelors. Their pranks lire ruining expensive hard-surfaced iiml pnve highways. During the winter months frost pene-trnles pene-trnles deep under the road surface, freezing mid refri-ezlng the subsoil numerous nu-merous times. Then, Just lllte freezing wiiter breaks the water pipe, the subsoil sub-soil bulges up mill cracks the surface of the highway. Rain and slush seeps through these cracks, freezes again, find the process of destruction goes merrily on. When spring comes the final touches are put on the breaking up of the road. The spring rains rush through the yawning cracks and wash away the subsoil, leaving n hollow shell. The warm sunshine aids In the destruction, drying the surface and making It brittle. brit-tle. It Is no time then until the road crumbles away under the heavy traffic Impacts. .Highway engineers of a big rubber concern travel and transport bureau declare that rapidly-Increasing highway high-way travel Is focusing the attention of road-bulldiiig experts to this underlying cause of highway destruction. They say mat governmental and private agencies have, In the past ten years, lost sight of adequate subgrade soil treatment In their eagerness to produce hard, wear-resisting surfaces for highways. high-ways. Men prominent In highway development, develop-ment, say the bureau's experts, now recognize the urgent need of spending the necessary time and money to build proper road foundations and drainages before expensive stretches of highway are constructed. Searching study and analysis of subsoils will figure more prominently In future road-building than any other phase of the work, they say. |